Noslers website shows 70gr of IMR-4350 pushing a 180gr bullet at 3130. My Lyman manual (49th edition) shows 72.5gr pushing a 180 at 3048. Hodgdon's info shows 71gr at 2974.
Until I get a chrono, I'd like to have some idea what speed Im shooting. So what do I go by ? Average the 3 at 71.2gr for 3050 ? I'm really just wanting to match Hornady's 180gr Heavy Mags.
I went with the IMR4350 because it seemed to show close to what I wanted, and was told it is a pretty accurate powder for the .300 WM.
Until I get a chrono, I'd like to have some idea what speed Im shooting. So what do I go by ? Average the 3 at 71.2gr for 3050 ? I'm really just wanting to match Hornady's 180gr Heavy Mags.
I went with the IMR4350 because it seemed to show close to what I wanted, and was told it is a pretty accurate powder for the .300 WM.